Derivation of the botanical name:
Bellardia named after Carlo Antonio Lodovico Bellardi (1741-1826), professor of botany at Turin, Italy (ref. genus Bellardia)
trixago, trix could derive from trix (thrix), "a hair," or trixos "three-fold," inasmuch as B. trixago is a glandular-hairy plant, and it was apparently an old name for some plant possibly of the mint family (ref. Bellardia trixago).
Bartsia, named after Swedish botanist Dr Bartoch, close friend of Carolus. Linnaeus

The standard author abbreviation L. is used to indicate Carl Linnaeus (1707 – 1778), a Swedish botanist, physician, and zoologist, the father of modern taxonomy.

The standard author abbreviation All. is used to indicate Carlo Allioni (1728 – 1804), an Italian physician and professor of botany at the University of Turin.